X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fboard%2Famcc%2Fbamboo%2Fflash.c;fp=qemu%2Froms%2Fu-boot%2Fboard%2Famcc%2Fbamboo%2Fflash.c;h=6dbe09f91dcc2cdab80d2f84e27538bd965317e6;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/board/amcc/bamboo/flash.c b/qemu/roms/u-boot/board/amcc/bamboo/flash.c
new file mode 100644
index 000000000..6dbe09f91
--- /dev/null
+++ b/qemu/roms/u-boot/board/amcc/bamboo/flash.c
@@ -0,0 +1,155 @@
+/*
+ * (C) Copyright 2004-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
+ * Add support for Am29F016D and dynamic switch setting.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+#include <common.h>
+#include <asm/ppc4xx.h>
+#include <asm/processor.h>
+#include <asm/ppc440.h>
+#include "bamboo.h"
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DEBUGF(x...) printf(x)
+#else
+#define DEBUGF(x...)
+#endif				/* DEBUG */
+
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];	/* info for FLASH chips        */
+
+/*
+ * Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0
+ */
+static unsigned long flash_addr_table[][CONFIG_SYS_MAX_FLASH_BANKS] = {
+	{0x87800001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
+	{0x00000000, 0x00000000, 0x00000000}, /* 1:boot from pci 66      */
+	{0x87800001, 0x00000000, 0x00000000}, /* 0:boot from nand flash  */
+	{0x87F00000, 0x87F80000, 0xFFC00001}, /* 3:boot from big flash 33*/
+	{0x87F00000, 0x87F80000, 0xFFC00001}, /* 4:boot from big flash 66*/
+	{0x00000000, 0x00000000, 0x00000000}, /* 5:boot from             */
+	{0x00000000, 0x00000000, 0x00000000}, /* 6:boot from pci 66      */
+	{0x00000000, 0x00000000, 0x00000000}, /* 7:boot from             */
+	{0x87C00001, 0xFFF00000, 0xFFF80000}, /* 0:boot from small flash */
+};
+
+/*
+ * include common flash code (for amcc boards)
+ */
+#include "../common/flash.c"
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size(vu_long * addr, flash_info_t * info);
+static int write_word(flash_info_t * info, ulong dest, ulong data);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init(void)
+{
+	unsigned long total_b = 0;
+	unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
+	unsigned short index = 0;
+	int i;
+	unsigned long val;
+	unsigned long ebc_boot_size;
+	unsigned long boot_selection;
+
+	mfsdr(SDR0_PINSTP, val);
+	index = (val & SDR0_PSTRP0_BOOTSTRAP_MASK) >> 29;
+
+	if ((index == 5) || (index == 7)) {
+		/*
+		 * Boot Settings in IIC EEprom address 0xA8 or 0xA4
+		 * Read Serial Device Strap Register1 in PPC440EP
+		 */
+		mfsdr(SDR0_SDSTP1, val);
+		boot_selection  = val & SDR0_SDSTP1_BOOT_SEL_MASK;
+		ebc_boot_size   = val & SDR0_SDSTP1_EBC_ROM_BS_MASK;
+
+		switch(boot_selection) {
+		case SDR0_SDSTP1_BOOT_SEL_EBC:
+			switch(ebc_boot_size) {
+			case SDR0_SDSTP1_EBC_ROM_BS_16BIT:
+				index = 3;
+				break;
+			case SDR0_SDSTP1_EBC_ROM_BS_8BIT:
+				index = 0;
+				break;
+			}
+			break;
+
+		case SDR0_SDSTP1_BOOT_SEL_PCI:
+			index = 1;
+			break;
+
+		case SDR0_SDSTP1_BOOT_SEL_NDFC:
+			index = 2;
+			break;
+		}
+	} else if (index == 0) {
+		if (in8(FPGA_SETTING_REG) & FPGA_SET_REG_OP_CODE_FLASH_ABOVE) {
+			index = 8; /* sram below op code flash -> new index 8 */
+		}
+	}
+
+	DEBUGF("\n");
+	DEBUGF("FLASH: Index: %d\n", index);
+
+	/* Init: no FLASHes known */
+	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+		flash_info[i].sector_count = -1;
+		flash_info[i].size = 0;
+
+		/* check whether the address is 0 */
+		if (flash_addr_table[index][i] == 0)
+			continue;
+
+		DEBUGF("Detection bank %d...\n", i);
+		/* call flash_get_size() to initialize sector address */
+		size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
+				   &flash_info[i]);
+		flash_info[i].size = size_b[i];
+		if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+			printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
+			       i, size_b[i], size_b[i] << 20);
+			flash_info[i].sector_count = -1;
+			flash_info[i].size = 0;
+		}
+
+		/* Monitor protection ON by default */
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_BASE,
+				    CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN - 1,
+				    &flash_info[i]);
+#if defined(CONFIG_ENV_IS_IN_FLASH)
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR,
+				    CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
+				    &flash_info[i]);
+#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR_REDUND)
+		(void)flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
+				    CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
+				    &flash_info[i]);
+#endif
+#endif
+
+		total_b += flash_info[i].size;
+	}
+
+	return total_b;
+}